Drain-head.



UNITED sraliismiaprnr ermee.

JOHANNES M. PETERSEN, OF CLINTON, IOWA.

DRAIN-HEAD.

To all whom t may concern Be it known that I, JOHANNES M. PETER- sEN, a citizen of the United States, residing at Clinton, in the county of Clinton and State of Iowa, have invented new and useful Improvements in Drain-Heads, of which the following is a specification.

This invention relates to improvements in drain heads for use in effecting the drainage of water from wet lands or other places wherein there is a tendency for water to accumulate, and the drainage of such water is desired. The construction proposed is of that type wherein a number of concentrically related screens are provided, which deiine filtering chambers through which the water flows, and the principal object of the present invention is to provide an arrangement of the character stated, in which the water is delivered to the drain tile virtually free from dirt or solid matter of such characteras would tend to interfere with the drainage of the land, and in which there is a maximum capacity for drainage.

The object above stated is achieved by the provision of screening openings of such size that they will etl'ectually take care of the water lying at the inner surface, and will not become clogged by solid matter7 and by the provision of means for preventing solid matter, for the most part, from passing` through said openings, and of means for disposing of any solid matter that may pass through the openings before the water reaches the drain tile.

Other objects and advantages will appear as the description proceeds.

An embodiment of the invention is illustrated in the accompanying drawings, wherein Figure l is an elevation of a drain head in which the features of the invention are incorporated; Fig. 2 is a vertical central sectional view thereof; FiO. 3 is a horizontal sectional view thereof.

Similar characters oit reference designate corresponding parts throughout the several views.

In the embodiment shown, the drain head comprises an outer cylindrical wall 1, an intermediate cylindrical wall 2, and an inner cylindrical wall 3, these walls defining outer and inner liltering chambers l and 5, which are to be filled with gravel or some other Specieation of Letters Patent.

Application filed May 3, 1913.

Patented Nov. 1S, 1913.

serial No. 765,359.

agent suitable for the purposes in view; bottom plates G and 7 for the chambers Il; and 5; and a conical top 8 which forms a common closure for the chambers l and 5 and for the upper end oi' the wall 3. The walls l, 2, and 3 are preferably of progressively increasing height, and their upper edges engage the top S and furnish support therefor. It is preferred to employ a conical top, since a top oi' such Ylorm aids in preventing dirt from packing around the drain head and :facilitates the flow of water into the dirt surrounding the head.

The wall 1 is provided with openings 9 through which water flows into the filtering chamber l. The openings` 9 are of relatively large dimensions, and are relatively closely associated. The essential characteristic of said openings is that they are overhung by downwardly and outwardly inclined lips l0 which prevent the passage into the chamber 4: ot' the greater percentage oi dirt which would otherwise pass into said chamber with the water, were said lips not provided.

rl`he wall 2 is formed with openings 11 which, in consideration of the facts that the wall 2 is ot smaller diameter than the wall 1 and must pass all the water which passes through the wall 1, are preferably o'lE greater dimensions than the openings 9, and also more closely associated. The openings l may be, and preferably are, formed with lips '12, similar to the lips 10, and having for their purpose the prevention of the passage ol dirt or solid matter into the filtering chamber 5.

The wall 3 is provided with closely associated apertures 1?), through which the water passes 'into the interior of said wall 'from the chamber 5. lhe openings 13 are formed throughout the extent ol the wall 3 between the conical cover 8 and the bottom plate 7 The wall 3 has an extended portion 14; below the bottom el the drain head, by means of which the drain head may be attached to the tile l5, used for carrying the water to a suitable depth in the ground and to a strata o'l' rock, gravel, or the like.

The bottom plates (S and 7 are provided with openings 1G and f1.7, through which any dirt that may be carried by the water into the filtering chambers Il and 5, and which is precipitated to the bottom Vot the chambers, `may pass into the ground. In

their openings provided with outwardly projecting overhanging lips, and the open- 15 ings in the intermediate wall being of greater dimensions than the openings in the outer wall.

In testimony whereof I have hereunto set my hand in presence of two subscribing 2o Witnesses.

JOHANNES M. PETERSEN.

Witnesses:

JOI-1N L. VVOLFE, CAssns LYoNs.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. C. 

